You cannot violate copyright by seeing, reading, hearing, or feeling a work. Even if you are knowingly observing an infringing copy, your consumption of that work is not an infringement.
The key here is that it taints you, not the thing. Just because the source code of eg.: Acrobat is known because the source is leaked, that does not make the source code of an alternative instantly illegal.
Is it possible to create a copyright basilisk?
Is it possible to create something where knowing about the thing constitutes copyright infringement?